Home / 66,005,912.40-99,022,865.40-19,943,998.80

Finding the Fourth Proportional to 66,005,912.40, 99,022,865.40 and 19,943,998.80

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Solution

The fourth proportional to 66,005,912.40, 99,022,865.40 and 19,943,998.80 is: 29,920,227.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,005,912.40 : 99,022,865.40 = 19,943,998.80 : x
  2. Step 2: Convert to fraction form
    66,005,912.40/99,022,865.40 = 19,943,998.80/x
  3. Step 3: Cross multiply
    66,005,912.40x = 99,022,865.40 × 19,943,998.80
  4. Step 4: Simplify right side
    66,005,912.40x = 1,974,911,908,710,161.75
  5. Step 5: Solve for x
    x = 1,974,911,908,710,161.75/66,005,912.40
  6. Step 6: Final answer
    x = 29,920,227.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.